Explain the following giving examples:
(a) Saturated solution
(b) Pure substance
(c) Colloid
(d) Suspension
Answers
SATURATED SOLUTION:The term saturated solution is used in chemistry to define a solution in which no more solute can be dissolved in the solvent. It is understood that saturation of the solution has been achieved when any additional substance that is added results in a solid precipitate or is let off as a gas.
EXAMPLE
Carbonated water is saturated with carbon, hence it gives off carbon through bubbles. Adding sugar to water until it no longer dissolves creates a saturated solution. Continuing to dissolve salt in water until it will no longer dissolve creates a saturated solution. The Earth's soil is saturated with nitrogen.
PURE SUBSTANCE: a substance is pure if it has a homogeneous chemical composition. At the nanoscale, this only applies to a substance made up of one type of atom, molecule, or compound. ...
Examples of pure substances include iron, steel, and water. Air is a homogeneous mixture that is often considered to be a pure substance.
COLLOID:a colloid is a combination of molecules mixed through other substances that will not settle out or join with the other substance. Mayonnaise and blood are both examples of colloids..
SUSPENSION: Suspension in science refers to a mixture where a solid particle does not dissolve in a liquid solution. ... Emulsions are a type of suspension, where two immiscible liquids are mixed together. Examples of suspended solutions include salt water, sand in water, and muddy water..
Explanation:
Answer:
Answer:(a) Saturated solution: bSolution in which no more solute can be dissolved at a particular temperature is known as saturated solution. For example in aqueous solution of sugar no more sugar can be dissolved at room temperature.
(b) Pure Substance:. Any substance is said to be pure if and only if it is made up of single type of particles means all the particles of that substance should be of same chemical nature. For example water, sugar, salt etc.
(c) Colloid:. A colloid is a heterogeneous mixture whose particles are not as small as solution but they are so small that cannot be seen by naked eye. When a beam of light is passed through a colloid then the path of the light becomes visible. For example milk, smoke etc.
(d) Suspension: A suspension is a heterogeneous mixture in which solids are dispersed in liquids. The solute particles in suspension do not dissolve but remain suspended throughout the medium. For example Paints, Muddy water chalk water mixtures etc.